$578 Cheap Flights from Okayama (OKJ) to Seattle (SEA)

View $578 flight on Tue, Sep 9, 2025Opens in a new window

Popular airlines from Okayama Airport (OKJ) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Okayama to Seattle (OKJ-SEA)

Prices were available within the past 7 days and start at $578 for one-way flights and $899 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Tue, Sep 23 - Sun, Oct 5
OKJ
Okayama
SEA
Seattle
$899 Roundtrip, found 6 days ago
$899
Roundtrip
found 6 days ago
Select Korean Air flight, departing Tue, Sep 23 from Okayama to Seattle, returning Sun, Oct 5, priced at $899 found 6 days ago
Korean Air
Sun, Sep 21 - Sun, Oct 5
OKJ
Okayama
SEA
Seattle
$946 Roundtrip, found 6 days ago
$946
Roundtrip
found 6 days ago
Select Korean Air flight, departing Sun, Sep 21 from Okayama to Seattle, returning Sun, Oct 5, priced at $946 found 6 days ago
Korean Air
Wed, Sep 24 - Thu, Sep 25
OKJ
Okayama
SEA
Seattle
$1,027 Roundtrip, found 6 days ago
$1,027
Roundtrip
found 6 days ago
Select Korean Air flight, departing Wed, Sep 24 from Okayama to Seattle, returning Thu, Sep 25, priced at $1,027 found 6 days ago
Korean Air
Tue, Sep 9 - Tue, Sep 30
OKJ
Okayama
SEA
Seattle
$1,036 Roundtrip, found 17 hours ago
$1,036
Roundtrip
found 17 hours ago
Select Korean Air flight, departing Tue, Sep 9 from Okayama to Seattle, returning Tue, Sep 30, priced at $1,036 found 17 hours ago
Delta
Wed, Sep 24 - Thu, Sep 25
OKJ
Okayama
SEA
Seattle
$1,053 Roundtrip, found 6 days ago
$1,053
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 24 from Okayama to Seattle, returning Thu, Sep 25, priced at $1,053 found 6 days ago
Korean Air
Tue, Sep 23 - Mon, Sep 29
OKJ
Okayama
SEA
Seattle
$1,055 Roundtrip, found 6 days ago
$1,055
Roundtrip
found 6 days ago
Select Korean Air flight, departing Tue, Sep 23 from Okayama to Seattle, returning Mon, Sep 29, priced at $1,055 found 6 days ago
Korean Air
Wed, Sep 24 - Thu, Sep 25
OKJ
Okayama
SEA
Seattle
$1,066 Roundtrip, found 6 days ago
$1,066
Roundtrip
found 6 days ago
Select Korean Air flight, departing Wed, Sep 24 from Okayama to Seattle, returning Thu, Sep 25, priced at $1,066 found 6 days ago
Japan Airlines
Wed, Sep 24 - Thu, Sep 25
OKJ
Okayama
SEA
Seattle
$1,193 Roundtrip, found 6 days ago
$1,193
Roundtrip
found 6 days ago
Select Japan Airlines flight, departing Wed, Sep 24 from Okayama to Seattle, returning Thu, Sep 25, priced at $1,193 found 6 days ago
Japan Transocean Air
Thu, Sep 11 - Sun, Sep 14
OKJ
Okayama
SEA
Seattle
$1,194 Roundtrip, found 3 days ago
$1,194
Roundtrip
found 3 days ago
Select Japan Transocean Air flight, departing Thu, Sep 11 from Okayama to Seattle, returning Sun, Sep 14, priced at $1,194 found 3 days ago
Hawaiian Airlines
Fri, Sep 26 - Tue, Oct 14
OKJ
Okayama
SEA
Seattle
$1,249 Roundtrip, found 6 days ago
$1,249
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Fri, Sep 26 from Okayama to Seattle, returning Tue, Oct 14, priced at $1,249 found 6 days ago
Flights from Okayama (OKJ) to Seattle (SEA)
Origin airport
Okayama
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, All Nippon Airways, Hawaiian Airlines, Japan Airlines
Roundtrip price
$898
Distance
5065 mi

Okayama to Seattle Flights

The cheapest times to fly from Okayama to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Okayama to Seattle are during the month of September. You can find some of the cheapest flights from Okayama to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Okayama to Seattle

Sunday is one of the best days to book for cheap flights from Okayama to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Okayama to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Okayama to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $578 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Okayama to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Okayama to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA) cost?
Discover the latest flight deals from OKJ to SEA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from OKJ to SEA?
The cheapest flights from OKJ to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from OKJ to SEA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from OKJ to SEA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA)?
There are no daily nonstop flights from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from OKJ to SEA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA)?
To reach Seattle - Tacoma Intl. Airport (SEA) on schedule, book a flight that leaves Okayama Airport (OKJ) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from OKJ to SEA are typically more expensive. To secure the best prices, start looking for flights well in advance. That being said, if your travel plans are flexible, you may find a cheap ticket right before your trip.
Is it cheaper to book an OKJ to SEA flight and hotel package?
Opting for an OKJ to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Okayama Airport (OKJ) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your OKJ to SEA flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.